Slitter and rewinder.



- S. M. LANGSTON.

SLITTER AND REWINDER. APPLIOATION FILED MAR. 27, 1913.

Patented Mar. 9, 1915.

2 SHEETSSHEET 1.

S. M. LANGSTON. SLITTBR AND REWINDER. APPLICATION FILED MAR. 27, 1913,

L 1 1 9 1 1.1; Patented Mar. 9, 1915.

2 SHEETS-SHEET 2- A TTOR/VEV MW? M. LANGSTON, 0h CAMDEN, JERSEY.

snrrrnn ann nnwnvnnn.

an ac.

Specification of Letters Patent.

Patented Mar. a, rain.

Application filed March 27, 1913. Serial No. 757,083.

To all whom it may concern:

Be it known that I, SAMUEL M. LANos'roN, a citizen of the United States,and resident of Camden, in the county of Camden and State of New Jersey,new and useful Improvements in Slitters and Rewinders, of which thefollowing is a specification. I

This invention relates to certain improvements in machines for slittingor trimming paper or like material, and rewinding the same, and involvesan improved means for Y disposing of the strips trimmedfrom thesideedges of the sheet and preventing them from being rewound with the bodyof the sheet or the strips formed from the latter.

In my improved machine, I employ a blower mechanism which is so designedas to deliver blasts of air toward the sheet .intermediate of thecutters and the winding mechanism and adjacent to the strips trimmedfrom the side edges of the sheet. Among the important features of myblower mechanism is the arrangement whereby the blasts of air may bedirected at different points dependent upon the width of the sheet beingtrimmed or trimmed and slitted,

and the arrangement of the driving mechanism whereby the blowerisoperated only while the machine is in operation.

One embodiment of my invention will be described more in detailhereinafter, and the novel features pointed out in the claims.

wish it understood that this specific construction constitutes only oneform which my invention may assume, and that various changes inconstruction, design and arrangement of parts may be made within thescope of the appended claims and without departing from the spirit of myinvention.

Reference is to be had to the accompanying drawing in which similarcharacters of re erence indicate corresponding "parts throughout theseveral views.

In the drawing:Figure 1 is a vertical section through a machine of atype manufactured by myself and having my improved blower mechanismapplied thereto; Fig. 2 is a perspective view of the machine showingmore in detail the preferred positioning of the blower; Fig. 3 is a topplan view of the blower mechanism showing portions of the driving andcutting parts of the machine; and Fig. 4 is a perspective view of theblower mechanism per se.

y improved blower mechanism may be i applied to various difi'erent typesof slitters and rewinders chines which sheet rather have inventedcertain thereof.

I have illustrated my invention as applied to a slitter and rewinder ofthe same general type as that shown in my prior Patent 1,105,281 issuedJuly 28, 1914. This machine includes a suitable frame 10 having asupport for a roll of paper to be trimmed or slitted and trimmed. Thewinding mechanismincludes two supporting rollers 12, 12 for the roll 13of paper, which has been trimmed or trimmed and slitted. A movablepressure roller 14: rests upon the roll 13 and moves upwardly as theroll increases. The paper ous guiding rollers to two parallel shafts 15,15 carrying the cutters or slitters 16 thereon. The machine is drivenfrom a belt on a loose pulley 17 on a drive shaft 18. This loose pulleymay be locked to the shaft in any suitable manner as for instance, by acone clutch member 19, moved lengthwise by a threaded sliding collar 20.The latter may be provided with a sprocket driven by a chain 21 from asuitable hand-wheel 22. The machine so far described in detail forms noportion of theinvention hereinafter claimed.

Mounted in any suitable position on the machine or adjacent thereto, Iprovide a blower 23 of any suitable type, for instance, of a commoncentrifugal form, and this blower has a pulley 24 to which power may betransmitted by a suitable belt leading from a pulley 25 keyed to a shaftof the machine. Preferably the two pulleys 17 and 25 are on the sameshaft and mounted adjacent to each other, and the pulley 17 is connectedby a clutch while the pulley 25 is fast. Thus the pulley 17 may runcontinuously but when the clutch is disconnected the machine will remainat rest and the fan blower will operate only when the machine is drivenor engaged in the actual operation of cutting the paper. The fan blowerdelivers the air through a conduit 26 to a distributing duct 27 and fromthis lead two pivdted nozzles 28. The nozzles are of such size and shapeand are so mounted that they may deliver blasts of air toward the paperat a point slightly above'the cutters and adjacent to the edge of thepaper. The nozzles being pivoted upon vertical axes in the passes fromthe roll 11 over variduct 27, may swing so as to properly deliver theair irrespective of material variations in the width of the aperoperated upon. As the body of the s heet of paper or the several stripsinto which it may be subdivided pass from the cutters upwardly towardthe rewinding mechanism the currents of air will blow the narrow stripstrimmed from the edges of the sheet, forwardly, and thus prevent themfrom adhering to the edges of the strips or sheet which is to berewound. This is of importance as the rewinding of the side strips witha portion of the sheet will not only be objectionable from the merepresence of these trimmings, but will also increase the diameter of theroll of finished paper at its edgesand thus prevent the'winding of thestrips at the center ortion with the desired hardness.

aving thus described my invention, what I claim as new and desire toprotect by Letters-Patent 1s 1. A slitter and rewinder including cuttlngmechanism for removing strips from theside edges of a sheet, windingmechanism for the body of the sheet, a blower, a distributing ductconnected thereto and two separate nozzles pivoted to said duct and adustable to deliver air against said sheet adjacent to the side edges ofthe latter.

2. A slitter and rewinder including cutting mechanism for removingstrips fromthe side edges of a sheet, winding mecha-- nism for the bodyportion of the sheet, a

blower, driven by the machine so as to operrate cutting mechanisms forremoving strips day f March from the side edges of a sheet, saidmechanisms being adjustable toward and from each other to leave the bodyof the sheet of any desired width, winding mechanism for the bodyportion of the sheet, a blower, a

distributing duct connected thereto and two separate nozzles connectedto said duct and adjustable toward and from each other in accordancewith the width of the body of the sheet and adapted to deliver airagainst said sheet adjacent to the side edges of the latter.

5. A slitter and rewinder including cutting mechanism for removingstrips from the side edges of a sheet, winding mechanism for the bodyportion of the sheet, a blower, nozzles connected thereto for deliveringair from said blower against said sheet adjacent the side edges of thelatter and power transmitting mechanism connecting said blower and saidmachine, whereby the former is automatically stopped and started uponthe stopping and starting of the latter.

6. A slitter and rewinder including two pairs of rotary cutters forsimultaneously removing strips from the side edges of a sheet of paper,said cutters being adjustable toward and from'each other to leave the 7body of the sheet of any desired width, winding mechanism receiving thebody of said sheet from said cutters, a blower, a pair of air deliveringducts connected thereto and terminating in nozzles adjustable toward andfrom each other in accordance with the Width of the body of the sheet, asource of power, detachable connections between said source of power andsaid winding mechanism, and means for driving said blower from saidwinding mechanism whereby the former. is automatically stopped andstarted upon the stopping and starting of the latter. Signed at New Yorkcity in the county of New-;York and State of New York this 26t A. D.1913. r

SAMUEL M. LANGSTON.

. Witnesses: V

CLAIR W. FAIRBANK, FLORENCE LEVIEN.

